215/55R16 tire size in inches

Nominal 215/55R16 dimensions

Overall diameter

25.31 in642.9 mm

Section width

8.46 in215 mm

Sidewall height

4.66 in118.3 mm

Circumference

79.52 in2,019.7 mm

Rim diameter

16 in

Revolutions per mile

797nominal, from geometric circumference

Inch notation

25.3x8.5R16approximate

Where 215/55R16 fits

• Inch class: 25.31 in is 0.31 in more than a true 25 inches, inside the 25-inch class (24.50 to 25.49 in).
• Profile: the 16-inch rim plus two 4.66 in sidewalls make up the overall diameter, and the sidewalls are 37% of it. At 55 series that is a mid profile, between low-profile performance sizes and tall truck sizes.
• Same 16-inch rim: the next taller catalog size is 205/60R16 (25.69 in, +1.48%) and the next shorter is 205/55R16 (24.88 in, -1.71%).
• Same 215 mm width: the closest in diameter are 215/45R17 (24.62 in, -2.74%), 215/60R15 (25.16 in, -0.61%), 215/50R17 (25.46 in, +0.61%), 215/65R15 (26.00 in, +2.74%). At the same width, a different profile or rim changes sidewall height and overall diameter, not section width.

Reading the marking: 215 is the section width in millimeters, 55 is the sidewall height as a percentage of that width, and R16 means radial construction for a 16-inch rim. Percentages are measured from 215/55R16.

Similar sizes on other rim diameters

Within 3% of 215/55R16's overall diameter, nearest first. The speed column is the actual speed when a speedometer calibrated for 215/55R16 reads 60 mph.

For a size without a comparison page, open 215/55R16 in the calculator and enter that size as the proposed tire.

Important: These results compare nominal dimensions. They do not confirm vehicle fitment. Actual clearance varies by tire model, approved rim width, wheel construction, suspension, alignment, body tolerances, steering angle, load, and brake geometry. Verify load and speed ratings and physically test-fit the complete setup before driving.

Physical checks before changing size

• Approved rim-width range for the exact tire model
• Load index and speed rating equal to or greater than vehicle requirements
• Brake-caliper, hub, and wheel-fastener compatibility
• Fender, liner, suspension, and full-lock steering clearance
• Clearance at full compression and under expected load
• Alignment, tire pressure, and manufacturer guidance
• Professional inspection when variance or clearance is uncertain

Published comparisons for 215/55R16

None keeps the 16-inch rim; each one changes wheel diameter. Diameter changes are measured from 215/55R16.